22461161 has 4 divisors (see below), whose sum is σ = 22567824. Its totient is φ = 22354500.

The previous prime is 22461157. The next prime is 22461163. The reversal of 22461161 is 16116422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22461161 - 2² = 22461157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22461163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53015 + ... + 53436.

It is an arithmetic number, because the mean of its divisors is an integer number (5641956).

Almost surely, 2^22461161 is an apocalyptic number.

It is an amenable number.

22461161 is a deficient number, since it is larger than the sum of its proper divisors (106663).

22461161 is a wasteful number, since it uses less digits than its factorization.

22461161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106662.

The product of its digits is 576, while the sum is 23.

The square root of 22461161 is about 4739.3207319193. The cubic root of 22461161 is about 282.1482755599.

Adding to 22461161 its reverse (16116422), we get a palindrome (38577583).

It can be divided in two parts, 22461 and 161, that added together give a palindrome (22622).

The spelling of 22461161 in words is "twenty-two million, four hundred sixty-one thousand, one hundred sixty-one".